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Jan.: 15 1924. 1,480,949

' T; OLINGER DAMPER Filed Mayj e, .1922

a Inuem/or @Si ThomosOkinggg Patented Jan. 15, i924.Y

Unirse STATES:

OF MICHIGAN.

THOMAS OLINGER, or n oLnaivn,MrcHiGANAssiGNon, BYMnsNnAssieNMENrs'roxFEDERAL MANUFACTURING COMPANY, or HOLLAND, mcnrsanga coniagna'rroit:

n AMPE-n. A

Application filed May 6,

To all 'whom t may concern:

Be it known that I, THOMAsQLINGER, a`

citizen of the United States of ,America residing at Hol-land, inV thevcounty of tta-wa and State `of Michigan, have invented certain new anduseful Improvementsl in Dampers; and I'do hereby declarethe followingtobe a full, clear, and eXact. de-

scription of the 1invention,.such aswill enable make a; dainpenin whichthe damper disk? of metal has aprojectingprong at one sidey foripassagethrough an openingin the pipe.

inwhich the-damper is mounted, said prong orzprojection beingvintegrally formed with `the disk., The disk also adjacent the `sidethereof opposite to that f at which said' projectioirislocated isqformed with guides for the receptionand' attachment of a relativelyshort operating member for the damper which may be inserted from theoutside through an opposed opening in the pipe and connected with thedisk so that the damper may be operated to change its position in thepipe from the outside, as is necessarily required foi` dampers. Myinvention has the attainment of these ends and constructions in aparticularly simple and elfective manner, as will appear asunderstanding of the invention is had from the following description,taken in connection with the accompanying drawing, in which,

Fig. 1 is a cross section through a furnace pipe equipped with the newdamper construction wliich is shown in elevation.

Fig. 2 is a longitudinal section through the pipe, the damper also beingshown in section diametrically therethrough.

Fig. 3 is a fragmentary perspective view of the damper disk, only suchparts of lthe saine being shown as illustrate the novel formationsproduced.

Figs. 4 and 5 are fragmentary transverse sections .taken on the planesof lines 4-4 and 5-5, of Fig. 1, respectively, and

1922. Serial No.'558,870.

or depression 2 along a diameterof thelsame.

At one end; of this rib the metal is extended, from the disk and formedyinto a:prong:or` projection 3 which when passed through an opening in aside of the .pipe in whichI the,v damper isiiistal-led,.servesasa.pivot=there= f for. At the opposite side of-thedi'slt but r inwardly a short distancefromzfthe ,edgev` thereof, themetalis cut on parallelhnes andi Y an oppositely pressed sliortl rib4,.isi made for the purpose of serving-as one of theguides of theoperatingfmemberfor=thel damper. An elongatedl opening .5f-is'madethrou'gh the disk' a'shoi't distance-froin--the guide 4, that partof theiri-bfor depression 2' between the opening and 'said-gui'deAimak'ing an oppositely-fornied guidefas sliciwii.-

Finally, at the edge of the disk a third guidev i y' 7 is pressed in thesame direction: as iguide 4, somewhat iared outwardly` toward its outeredges, it being formed witha slot-Sent. therein at its. inner edgeysubstantially in conjunction with the opening 5, as sho-wn. Thiscompletes the damper disk which, it will be observed is made from asingle piece of sheet metal of the required thickness for strength`needed and which is reinforced for greater strength by the rib 2 acrossthe same. The operatinlg` member for the damper comprises a rod 9 rolledfrom a single length of sheet nietal and provided at its outer end Vwitha. at operating handle 10. Between the ends of the rod, two lips l1project from the rod, being cut from the metal so as to come togetherside by side when it is rolled into a rod, each of said lips having anintegral overhanging end portion 12 which also lie side by side, asshown. A. third lip 13 is also formed with the rod at o-ne of the edgesthereof between lips 11 and the outer end of the rod. Two washers ordisks 14 and 15 are passed o-ver the rod, openings being made throughsaid disks for the purpose, as well as slots to permit the passage bythe lips l1 and l3,the latter being bent back partly upon itself afterthe washers have been put on the rod in order topreclude disconnection.A coiled spring 16 is located around the rod 9 between the washers ordisks 14 and 15, serving to lnormally force the same apart to' cause oneto bear against the lip 13, or against the side of the pipe 17 after itis connected with the damper, and the other against the end 10 of theoperating member, as is obvious.

In the installation of the damper in a. pipe, such as 17, the damperdisk 1 is placed inside of the pipe and its projection 3 passed throughan opening in a side of the pipe, as shown, the guides for the operatingmember being alined With the opening in the opposite side of the pipe.The operating member is then attached by inserting thev same throulrhthe openingin said opposite side of the pipe, thence passing throughlguides 7, 6 and 4, or until the lips 11 with their overhanging parts 12come to the opening at 5. This brings the Washer 14 against the outerside of the pipe and partially compresses the spring 16. By turning theoperating` member until the lips 11 aline with the slot at 8, and thenreleasing the operating member, spring 16 serves to move the rod so thatthe lips 11 enter slot 8 and the parts 12 lie over the adjacent portionsof the iirst guide 7. The disassembly is a mere reversal of thisoperation, assembly or disassembly being accomplished almost instantly.

The construction is simple, economical, practical, durable andefficient. Its few parts and economy in material and Workmanship make ita marked advance in the art.' f

I claim:

1. A damper comprising a flat circular member of sheet metal having arib pressed therefrom across and o-n a diameter of the member, said ribbeing extended beyond the edge of the member at-one end to make a shortprojection, and integrally formed means stamped from the member at theside thereof diametrically opposite said projec- 'tion for thedetachable receptionl and connection of an operating'imember 'tosaidmember.

2. A damper comprising a flatcircular sheet metal member having a ribpressed Y therefrom across and on a diameter of the member, said ribextending beyond the edge Y of the member at one side thereof to form apivot prong, and guides pressed from the spaced apart points near oneside of theA member diametrically opposite the prong,v in alinement withthe rib and in a directionV opposite thereto, the rib between said tvvoguides serving as an additional guide, said member between the outermostguide and the rib being cut away to make an opening through the member,and said outermost guide being provided with a slot in its inner edge insubstantial conjunction with said opening, substantially as and for thepurpose described.

In testimony whereof I affix my signature.

THOMAS OLINGER.

